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Hydrotreatment catalyst and application thereof

A technology for hydrotreating and catalyst is applied to hydrotreating catalyst and its application field in hydrotreating pretreatment reaction, and can solve the problem that desulfurization activity needs to be improved, etc.

Active Publication Date: 2014-06-04
BEIJING ENERGY ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to meet the gasoline production requirements of the new environmental regulations, its desulfurization activity still needs to be improved

Method used

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  • Hydrotreatment catalyst and application thereof
  • Hydrotreatment catalyst and application thereof

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Experimental program
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Effect test

Embodiment 1

[0029]Catalysts A, B, C, D, E and F were prepared according to the dry impregnation method. The dry impregnation method includes dry impregnation with an aqueous solution of ammonium heptamolybdate and ammonium metatungstate and nickel nitrate. Adjust the concentrations of the three salt solutions in the precursor solution, deposit the expected weight of metal oxides on the support, mature the impregnated solid at room temperature for 4 hours, and dry at 120°C for 6 hours. Finally, the dried solid was calcined in air at 500°C for two hours on an alumina support (pore volume of 1.2 cm 3 / g), the characteristics of the catalyst prepared according to the aforementioned method are listed in Table 1.

experiment Embodiment 1

[0033] The catalytic activity of the hydrogenation catalyst was evaluated using a microreactor. The hydrotreating catalysts A, B, C, D, E, F, and G prepared in Example 1 and Comparative Example 1 were pressed into pellets, and then sieved into 40-60 meshes. Take 0.2 g of hydrogenation catalysts A, B, C, D, E, F, and G respectively, and use propane-2-mercaptan, 1-hexene, and isoprene as model compounds to carry out hydrogenation pretreatment reaction. The vulcanization condition is to use 5% by weight CS 2 n-Hexane for Sulfurized Oil at Space Velocity 36 hours -1 vulcanization for 3 hours at a feed rate of 0.3 ml / min, H 2 The flow rate is 180 ml / min, and the pressure is 3.2 MPa. The reaction condition is to use the n-hexane solution containing 1% by weight of propane-2-mercaptan, 10% by weight of 1-hexene, and 10% by weight of isoprene as reaction oil, in H 2 The pressure is 3.2 MPa and the volumetric space velocity is 6 hours -1 , the feed rate was 0.2 ml / min, the volume ...

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Abstract

The invention provides a hydrotreatment catalyst, comprising a carrier and metal active ingredients. Wherein the metal active ingredients contain molybdenum and / or tungsten and nickel, which takes the weight of total weight of the catalyst as reference, measured as oxide, the content of the carrier is 60-89.5 %, the content of molybdenum and / or tungsten is 0.5-10 %, and the content of nickel is 10-30 %. The invention further provides an application of the hydrotreatment catalyst in hydrogenation pretreatment reaction. The hydrotreatment catalyst of the present invention has high catalytic activity and is highly selective towards the hydrogenation reaction of dialkene.

Description

technical field [0001] The invention relates to a hydrogenation treatment catalyst and its application in hydrogenation pretreatment reaction. Background technique [0002] The large amount of exhaust gas from automobiles has continuously deteriorated the air quality and made environmental pollution more and more serious. Providing clean and environmentally friendly vehicle fuels has become an urgent task for the oil refining industry in the 21st century. The hazards of sulfur-containing gasoline are mainly manifested in: burning sulfur-containing gasoline will increase the emissions of SOx, HC, CO, and NOx, poison the exhaust catalytic converter, and damage the performance of oxygen sensors and on-board diagnostic systems. In the late 1990s, developed countries and regions such as Europe, the United States, and Japan successively reduced the sulfur content of gasoline from the original 0.1% to about 50-100ixg / g. A few days ago, gasoline production that meets the new enviro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/888C10G45/38
Inventor 曲良龙陈晓林陈士博
Owner BEIJING ENERGY ENG TECH